@Lady No, because Thursday is never Sunday.
;)
To answer the question I'm pretty sure you meant to ask: no, if the 31st falls on a Sunday or Monday. In those cases, December has five Sundays and November has five Thursdays (because November starts on Wednesday or Thursday). So the first Thursday before the fifth Sunday before the New Year is always the last Thursday in November, but not always the fourth.
@noelle so this means i SHOULD be upset about the franksgiving compromise, i guess
@noelle i guess it makes sense that while the fifth sunday before new years might sometimes be in november, it will never precede a thursday which is also in november, but i hadn’t actually done the math to figure that out, or if it swang the other way